If you want better cooling for your big-block Mopar, a wider 26-inch radiator core support is recommended. Here's how you attack the surgery!
22 to 26 inch radiator conversion with no cutting/welding
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Changing radiator support from 22 to 26
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Mopars Need Extra Help With The Heat—Here's How To Fix It!
Upgrade Your Mopar's Core Support to 26 Inches & Get Cooled!